Method ftpChmod

/**
 * Quick FTP chmod
 *
 * @param   string   $url   Link identifier
 * @param   integer  $mode  The new permissions, given as an octal value.
 *
 * @return  mixed
 *
 * @link    https://www.php.net/manual/en/function.ftp-chmod.php
 * @since   1.7.0
 */
public static function ftpChmod($url, $mode)
{
    $sch = parse_url($url, PHP_URL_SCHEME);
    if ($sch !== 'ftp' && $sch !== 'ftps') {
        return false;
    }
    $server = parse_url($url, PHP_URL_HOST);
    $port = parse_url($url, PHP_URL_PORT);
    $path = parse_url($url, PHP_URL_PATH);
    $user = parse_url($url, PHP_URL_USER);
    $pass = parse_url($url, PHP_URL_PASS);
    if (!$server || !$path) {
        return false;
    }
    if (!$port) {
        $port = 21;
    }
    if (!$user) {
        $user = 'anonymous';
    }
    if (!$pass) {
        $pass = '';
    }
    switch ($sch) {
        case 'ftp':
            $ftpid = ftp_connect($server, $port);
            break;
        case 'ftps':
            $ftpid = ftp_ssl_connect($server, $port);
            break;
    }
    if (!$ftpid) {
        return false;
    }
    $login = ftp_login($ftpid, $user, $pass);
    if (!$login) {
        return false;
    }
    $res = ftp_chmod($ftpid, $mode, $path);
    ftp_close($ftpid);
    return $res;
}